Bulk milk cooling unit designed to cool raw milk at village level co-operative societies to conserve milk quality and check micro organisms.
Hygienic container built to sanitary standards.
Rated capacity: 5,000 litres (minimum).
Maximum cooling temperature range: milk should be cooled from 35°C to 3 or 4°C.
Maximum cooling time: total capacity milk should be cooled down from 35°C to 3°C/4°C within 4 to 5 hours.
Connected power: 380 V, 3 phase, 50 Hz, 14.4 kW.
Ambient temperature considered for design: 43°C.
Tank And Evaporator
Tank inner, outer, and bottom dimpled jacket made of SS AISI 304 material, welded with TIG process.
Inner shell and all other milk contact surfaces polished to minimum 150 grid finish.
Evaporator is a dimpled pressed plate jacket at the bottom plate of the inner tank, with optimum design and large evaporation surface area for rapid and problem free cooling at all volumes of milk.
All connecting pipes terminating outside the tank are of SS construction.
Tank has a top manhole cover with locking arrangement for inspection.
Milk inlet complete with specially designed no foam inlet and arrangement for easy cleaning.
Agitator works only at temperature below 20-25°C.
Rated capacity: 5,000 litres (minimum).
Material used for construction: AISI 304.
Shape and orientation: horizontal cylindrical close type with man way.
Number of agitators: 01.
RPM of agitator: 47 (3 sets of pinion should be supplied as spare, if used).
Position and shape of agitator blade: such that even small quantities of milk should be gentle stirred without danger of freezing.
CIP facility: auto cleaning and rinsing with self-rotating spray ball at the top portion of the tank with the help of balance tank and stainless steel centrifugal pump.
Manhole and ladder: a manhole with easy access by fixed stainless steel ladder.
Thermal insulation efficiency: such that the rise of milk temperature initially at 4°C cannot exceed 1°C during 12 hours with the rated volume of milk not being stirred and room temperature 40°C as per requirement of ISO 5708.
Facility to measure milk volume: stainless steel dipstick with calibrated chart.
Tank legs: stainless steel legs with adjustable ball type feet.
Milk outlets: through specially designed lockable 51 mm butterfly valve and terminating in proper end connection and blank.
Overall dimension of tank (excluding refrigeration unit): 3300 x 1830 x 1860 mm.
Weight (excluding refrigeration unit): 1250 kg.
Refrigeration Unit
Refrigeration system designed with adequate capacity to chill the milk as per basic design parameters with multiple condensing units.
Each condensing unit consists of compressor, condenser, receiver, dryer, expansion valve, high-pressure cut out, low-pressure cut out, solenoid valve, sight glass, oil separator, and other controls suitable for smooth operation.
All necessary refrigerant pipes and fittings for interconnection of all refrigeration components supplied.
All refrigerant pipes properly clamped on fixed support and sponge insulation for protection.
Shut off valve on both sides of compressor, receiver, and dryer.
